I know this thread is getting kind of cold but this idea interest me. As my Brother-In-Law is a biker, works at a bike shop and every friend he has is a biker, this might be something useful for me to develop.

I'm telling you, it would be enormously popular if you created an app that would feed directly to Strava. Or at the minimum, a gpx file you could email them.

I'm working on a WP7 app for keeping a list of waypoints in a route, storing and retrieving multiple routes, and tracking mileage/time, etc. The GPX file format is new to me and would have to be researched. But...

What do you mean by "enormously popular"? I see Strava has apple and android apps. Do you know many cyclists with Windows Phones?
Thanks,
Rick

I'm working on a WP7 app for keeping a list of waypoints in a route, storing and retrieving multiple routes, and tracking mileage/time, etc. The GPX file format is new to me and would have to be researched. But...

What do you mean by "enormously popular"? I see Strava has apple and android apps. Do you know many cyclists with Windows Phones?
Thanks,
Rick

It may be somewhat of a paradox. Hardcore cyclists would not switch phones without the app being available and no one will make the app without users.

Interesting. I already have an app in the marketplace that does GPS tracking for activities like cycling. Tracks: marketplace link

I could add GPX support pretty easily. The small hurdle would be uploading it to Strava. They don't seem to have 3rd party access to upload data, and we know transferring arbitrary files directly from the phone to PC isn't really possible. The only solution would be to save it to cloud storage like dropbox.

Interesting. I already have an app in the marketplace that does GPS tracking for activities like cycling. Tracks: marketplace link

I could add GPX support pretty easily. The small hurdle would be uploading it to Strava. They don't seem to have 3rd party access to upload data, and we know transferring arbitrary files directly from the phone to PC isn't really possible. The only solution would be to save it to cloud storage like dropbox.

When the app is done... Talk to the people over att GoPro and I'm sure they'll feature it. :)